Air-engine



" 3 Sheets- -Sheet 2.

BY, J. MERRILL, PATTEN, & E. P. WOODBURY.

Air-Engine.

Patented June 8, 1880.

J. 1A. WOODBU III] Iummm Fig, 2 Inventors:

James v1- u oodbwry, V

.- Joshua/Merrill,

Witnesses:

' .7 Z 2 Y K Georgalattem, z'du a u'mkzmwao bw by .flttbrney.

3 Shets-Sheet 3. J.- A. WOODBURY, J. MERRILL; G. PATTEN, &{ B. F. WOODBURY.

Air-Engine; No. 228,715. Patented June 8,1880.

G2 J! KI g 7 JV I m [I :2 0/ a U f w 3 J H l 5* a Q C Fig.3. Inventors Witnesses. Ja/mesfl.moibury, 6 9/% Joshua Merrill,

a GeoryePatteri, I I .EdwardI'rankZin I Ybodbuw byM .flttorney.

UNITED STATES PATENT Orrrcni.

JAMES A. WOODBURY, JOSHUA MERRILL, GEORGE PATTEN, AND EDWARD F. \VOODBURY, OF BOSTON, MASSACHUSETTS.

AIR-ENGINE:

SPECIFICATION forming part of Letters Patent No. 228,715, dated June 8, 1880.

Application filed January 23, 1880.

To all whom it may concern Be it known that we, J AlVIES A. WOODBURY, JOSHUA MERRILL, GEO. PATTEN, and En- WARD FRANKLIN WOODBURY, all of Boston, in the county of Suffolk and State of Massachusetts, have jointly inven ted certain new and useful Improvements in Air-Engines, (Case 1),) of which the following, taken in connection with the accompanying drawings, is a specification. Our invention relates to that class of airengines in which a working-cylinder is used in combination with a reverser-cylinder and operated by compressed air by alternately heating and cooling it.

1 It consists, first, in the combination of two double-acting working-cylinders and two reverser-cylinders, each having direct communication with the lower end of one working-cylinder and with the upper end of the other working-cylinder, as will be described.

It further consists in the combination of two double-acting working-cylinders, two reverser' cylinders, each having direct communication with the lower end of one working-cylinder and 2 5 with the upper end of the other working-cylinder, and means of applying heat to each of the reverser-cylinders.

It further consists in the combination of two double-acting working-cylinders, two reversercylinders, each having direct communication with the lower end of one of said working-cylinders and with the upper end of the other working cylinder, and a furnace or other means of applying heat to each of the work- 3 5 in g-eylinders.

It further consists in the combination of two working cylinders, two reverser cylinders, each having direct communication with the lower end of one workingcylinder and with 0- the upper end of the other working-cylinder,

and means of applying heat to all of said cylinders.

Figure 1 of the drawings is a plan of an engine embodying our invention. Fig. 2 is a front elevation, and Fig. 3 is a side elevation.

A and A are two working cylinders, each provided with a furnace, B or B; and O and G are two reverser-cylinders, also provided with furnaces D and D, the cylinders A and 0 being connected by the air-pipe a and their furnaces B and D by the smoke-flue b, and.

the cylinders A and O are similarly connected by the air-pipe a and the furnaces B and D by the smoke-flue b, said cylinders, furnaces, pipes, and lines being constructed in all respects substantially as described in another application of even date herewith.

E is the air-pump; E, the water-circulating pump; F, the cooler; F, the crank secured to one end of the shaft F having mounted upon its other end the adjustable eccentric Gr, connected by the divided eccentric-rod G to the outer end of the beam or lever G mounted by central journals in hearings in the top of the stand G and His the governorall construct- 6 ed, arranged, and operating substantially as described in a second application of even date herewith.

The piston-rods ofthe two working-cylimlers are connected to the cross-heads I and I, fitted to and adapted to move up and down upon the slides J and J, respectively, saidcross-heads being connected by suitable links with opposite ends of the lever or beam K, mounted by central journals in bearings in the stand K and the inner end of said beam is connected, by the link d, to the inner end of the beam L, mounted by central journals in bearin gs in the top of the column L, and connected at its other end, by the rod L to the crank F, all so arranged that the alternate reoiprocations of the working-pistons, acting through the beams K and L and rod L will cause the shaft F and eccentric G to be rotated, and the eccentric Gr, acting through the rod G, causes the beam Gr to be vibrated about its axis of motion.

The beam G being connected by a link at its inner end with the inner end of the beam M, imparts to it a similar vibratory motion, by which the two reverser-pistons, connected by 0 their respective piston-rods to opposite ends of said beam M, are made to move up and down within their cylinders in direct opposition to each other, operating to reverse the air or change it from one end to the other of said 5 cylinders, as described in other applications of even date herewith.

N is a pipe leading from the rcversercylinder O, at a point between the heater and regenerator, to the chamber above the piston of the working-cylinder A, and N is a similar pipe connecting the heated end of the reversercylinder 0 with the chamber above the piston of the working-cylinder A, all so constructed and arranged that heated air is supplied by each of the reverser-cylinders to one end of one working-cylinder and to the opposite end of another working-cylinder, by which arrange ment we are able to operate two double-acting workingcylinders by the use of only two reversers, which otherwise would be i1np0ssible.

The water-pump E forces water through pipe cl, cooler F, and pipes e and 0 into the lower water-space in each of the working-cylinders A and A simultaneously, through all of the water-chambers in which it is forced in succession, and then through the pipes f and f to the lower water-chambers in the reverser-cylinders 0 and C, respectively, and after traversin g the several water-chambers in said cylinders in their piston-rods and pistons it is discharged through the pipes g and g into the open air.

Air is forced into the reverser-cylinders O and O to raise the pressure to the desired standard and maintain said pressure therein by the air-pump E, said air passing from the pump, through pipe h and cooler F, into a distributing-reservoir, (not shown, but substantially like what is described in the application first before referred to,) and thence through the pipes i andj and check-valve i and j.

The operation of our improvements will be readily understood from the foregoing description without further explanation here.

What we claim as new, and desire to secure by Letters Patent of the United States, is-

1. Two double-acting working-cylinders, in combination with two reverser-cylindcrs, each having direct communication with the lower end of one working-cylinder and with the upper end of the other working-cylinder, substantial] y as described.

2. Two double-acting working-cylinders, in combination with two reversers, each having direct communication with the lower end of one working-cylimiler and with the upper end of the other working-cylinder, and means of applying heat to each of the revcrsers, substantially as described.

3. Two double-acting working-cylinders, in combination with two reversers, each having direct communication with the lower end of one working-cylinder and with the upper end of the other working-cylinder, and means of applying heat to each of the working-cylinders, substantially as described.

4:. Two double-acting working-cylinders, in combination with two reversers, each having direct communication with the lower end of one working-cylinder and with the upper end of the other working-cylinder, and means of applying heat to all of said cylinders, substantially as described.

5. Two double-acting working-cylinders, each provided with a long piston fitted to and working therein, in combination with two reverser cylinders communicating with said working-cylinders, substantially as described.

6. Two double-acting working-cylinders, in combination with a long piston fitted to and working in each of said cylinders, two reverser cylinders communicating with said working-cylinders, and a furnace or other meansof applyingheat to each of said reverser or working cylinders, substantially as de scribed.

7. Two double-acting working-cylinders, each provided with a long piston fitted to and working therein, in combination with two reverser-cylinders having communication there with, a furnace or other means of applying heat to each of said working or reverser cyl-- indcrs, and a stationary packing located at or near the center of the length of each workingcylinder, substantially as and for the purposes described.

Executed at Boston, Massachusetts, this 28th day of April, A. D. 1879.

JAMES A. WOODBURY.

JOSHUA MERRILL.

GEO. PATTEN.

EDWARD FRANKLIN WOODBURY.

Witnesses:

N. O. LOMBARD. E. A. I-IEMMENWAY. 

